161. Mycorrhiza is correctly described as
A) Parasitic association between roots and some fungi
B) Relation of ants with the stem of some trees
C) Symbiosis of algae and fungi
D) Symbiotic relationship between fungi and roots of some
higher plants
162. Common cold is not cured by antibiotics because it
is
A) Caused by a Gram negative bacterium
B) Not an infectious disease
C) Caused by a virus
D) Caused by a Gram positive bacterium
163. Prions affect which tissue in the body?
A) Endocrine
B) Cardiac
C) Connective
D) Nervous
164. Gas leaked in
Bhopal tragedy was
A) Methyl isocyanate
B) Potassium
isothiocyanate
C) Sodium isothiocyanate
D) Ethyl isothiocyanate
165. Tuberculosis is caused by
A) Mycobacterium
B) Vibrio
C) Clostridium
D) Nitrobacter
166. HIV mainly affects
A) Cell mediated T lymphocytes
B) Helper T lymphocytes
C) Natural Killer cells
D) Cytotoxic T lymphocytes
167. Release of milk and contraction of uterus are caused
by
A) Prolactin
B) Oxytocin
C) Progesterone
D) Estrogen
168. Which of the following are analogous organs?
A) Eye of cephalopods and vertebrates
B) Flippers of seal and wings of pigeon
C) Tendril of Passiflora and thorn of Bougainivillea
D) Legs of grasshopper and honey bee
169. Which of the following is an apocrine gland?
A) Mammary gland
B) Thyroid
C) Thymus
D) Hypothalamus
170. The development of fruit without fertilization is
A)
Parthenogenesis
B) Parthenocarpy
C) Apomixes
D) Apogamy
171. Ranikhet attacks the
A) Pigs and poultry
B) Poultry and honey bee
C) Silkworm and camels
D) Poultry only
172. Knee or elbow joint is
A) Pivot
B) Condyloid
C) Gliding
D) Hinge
173. The product of conjugation in Spirogyra is
A) Akinete
B) Zygospore
C) Chlamydospore
D) Zoospore
174. Thylakoids occur inside
A) Endoplasmic Reticulum
B) Golgi Complex
C) Chloroplast
D) Mitochondria and chloroplast
175. Which state consists of super energetic and super
excited particles?
A) Liquid
B) Gas
C) Plasma
D) Bose-Einstein Condensate
176. According to Henry’s law
A) doubling the partial pressure doubles the solubility
B) doubling the partial pressure triples the solubility
C) doubling the
partial pressure decreases the solubility
D) doubling the partial pressure does not affect the solubility
177. The protecting power of lyophilic colloidal sol is
expressed in terms of
A) Critical miscelle concentration
B) Oxidation number
C) Coagulation value
D) Gold number
178. Atoms having same number of neutrons but different
mass number are called
A) isotopes
B) isobars
C) isotones
D) isotherms
179. Which of the
following has largest negative electron affinity?
A) F
B) Cl
C) Br
D) I
180. The family of elements with the highest ionisation
enthalpy:
A) Alkali metals
B) Alkaline earth metals
C) Halogens
D) Noble gases
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